Showdown on the stand: Arias vs. Martinez

Prosecutor Juan Martinez grapples with Arias’ memory of the night Alexander died

Jodi Arias is accused of killing her ex-boyfriend, Travis Alexander; she claims self-defense

Watch the trial live on truTV's In Session and HLN

You can watch Jane Velez Mitchell at 7 p.m. ET, Nancy Grace at 8 p.m. ET, followed by Dr. Drew at 9 p.m. ET as they recap the day's testimony in the trial.

Finally getting his chance to grill Jodi Arias during cross-examination, prosecutor Juan Martinez pounced in dramatic fashion on Arias’ claims that she couldn’t remember the specifics about the brutal slaying of her ex-boyfriend Travis Alexander, causing several tense exchanges between the two.

“Do you have problems with your memory, Ma’am?” Martinez said.

“Sometimes,” Arias fired back.

“So, you can tell us what kind of coffee you bought at Starbucks back on June 3, 2008 ... and you can tell us for example what type of sex you had with Mr. Alexander many years ago but you’re having trouble telling us what you said a couple of days ago?”

6:33 p.m. ET: Judge Stephens has recessed court until Monday at 12:30 p.m. ET, when prosecutor Martinez will continue his cross-examination of Arias.

6:30 p.m. ET: Arias said spent the night at McCartney's house on June 2, 2008, a couple of days before she allegedly killed Alexander in self-defense.

6:29 p.m. ET: Martinez is comparing her on-and-off again relationship with MaCartney to her tumultuous relationship with Alexander.

6:27 p.m. ET: Martinez is probably bringing up this episode with McCartney to establish a pattern of behavior.

6:24 p.m. ET: Arias said she was 21 when she caught McCartney cheating on her.

6:23 p.m. ET: Arias said after confronting the girl she learned that she had been somewhat intimate with McCartney.

6:19 p.m. ET: Martinez is asking Arias about an episode where a former boyfriend, Matt McCartney, cheated on her with another girl. Arias confronted the other girl.

6:14 p.m. ET: Arias said she broke up with Alexander, because he cheated on her.

6:12 p.m. ET: Martinez said Arias tried to pass two magazines to a friend who visited her in jail four days before a hearing about allegations Alexander was a pedophile. The magazines had the same statements inside of them.

6:08 p.m. ET: Martinez is showing the jury a transcription of all the notes that Arias wrote in the magazine.

6:04 p.m. ET: Arias wrote on other pages of the magazine that she needed to talk to her friend ASAP, because there was something her friend messed up in her story. The attorneys are at a sidebar with the judge.

5:59 p.m. ET: In one of the magazine's, Arias wrote the contact information of an ABC news producer.

5:53 p.m. ET: Martinez is talking about a magazine Alexander tried to give to friend who visited her while she was in police custody. The magazine's were reviewed by the jail guards before they were given to the her friend. The defense is now reviewing another magazine Arias tried to give a friend while she was in jail.

5:46 p.m. ET: The defense is reviewing the magazine. The attorneys are at a sidebar with judge Stephens.

5:45 p.m. ET: Martinez has asked for a magazine belonging to Arias be submitted into evidence.

5:44 p.m. ET: Arias said she remembered the hearing in August 2011 that dealt with Alexander's alleged pedophile behavior. Martinez accuesed Arias of trying to get someone to lie on her behalf at the hearing. The defense objected, and now the attorneys are at a sidebar.

5:37 p.m. ET: Martinez is asking Arias about a pre-trial hearing on August 8, 2011, where Alexander's alleged masturbation episode was discussed. The attorneys are at a sidebar with Judge Stephens.

5:32 p.m. ET: Prosecutor Martinez is talking about how no where in her journal does she mention the episode where she caught Alexander masturbating to an image of a little boy. Arias is reviewing some phone records now.

5:06 p.m. ET: The live blog will pick back up when testimony resumes at 5:25 p.m. ET.

5:04 p.m. ET: A text message Arias sent the next indicates she did not have a car, and needed a ride from Alexander.

5:01 p.m. ET: Martinez is hinting at the fact that the text messages seem to indicate Arias was jealous and wanted to know what Alexander was doing the night she supposedly caught him masturbating to an image of a little boy.

4:58 p.m. ET:

Martinez is doing a good job of punching holes in #JodiArias' testimony.I hope the jury is picking up on it. @eveningexp

4:55 p.m. ET: Arias testified earlier that after witnessing Alexander masturbating to an image of little boy she left his house, and Alexander called her repeatedly. Martinez is showing the jury that the phone records may not support Arias' claims. The records show that he called her only 5 times throughout the entire day.

4:49 p.m. ET: Martinez said the text messages, from Arias to Alexander after she witnessed him masturbating to an image of a little boy seem very "pedestrian."

4:44 p.m. ET: Martinez is asking Arias whether she saw Alexander masturbating to a photograph or to images on a computer. There seems to be another discrepancy in her story about Alexander masturbating to an image to a little boy.

4:40 p.m. ET: The text messages show Arias may not have had a car to drive home that evening, because she was texting Alexander to borrow his car. The attorneys are at sidebar.

4:39 p.m. ET: Martinez is punching other holes in Arias story about catching Alexander masturbating to the image of the little boy. Martinez said Alexander wasn't home when she said he was masturbating, because he was attending a Mormon family function.

4:36 p.m. ET: Martinez is showing the jury some text messages that seem to indicate Arias did not have a car to use, when she claims she drove home after witnessing Alexander masturbate to an image of a little boy.

4:33 p.m. ET: The defense is reviewing records of text messages between Arias and Alexander.

4:28 p.m. ET: Martinez is drilling Arias about holes in her memory when she witnessed Alexander masturbating to an image of a little boy.

4:25 p.m. ET:

#JodiArias says to ptosecutor she has memory problems "When men like you are screaming at me..."

4:07 p.m. ET: Arias is being asked about how she found Alexander masturbating to an image of a little boy in January 2008. Martinez refers back to her journal entry from January 2008 where she wrote there was nothing noteworthy to mention in the journal.

"It’s so noteworthy to you that you waited until after you killed Mr. Alexander to tell anybody about it," said Martinez.

"I waited years," replied Arias.

4:06 p.m. ET: Martinez asked Arias what stopped her from telling the truth about what happened to Alexander for so long.

Martinez asked, "Nothing has stopped you from telling this story, ever."

"That is not correct," replied Arias.

Martinez said, "You have free will, don’t you?"

4:02 p.m. ET:

#JodiArias showing a much stronger side as she gets questioned by Martinez.Smirking.Sarcastic.Live on #HLN.

1:15 p.m. ET: Martinez asked, "Ma’am the injury to your finger happened on June 4, 2008 not January 22 of 2008, did it?" "That’s not correct," replied Arias.

1:13 p.m. ET: Martinez is asking Arias about the discrepancies in what she has said about the multiple injuries she has endured on her hand.

1:11 p.m. ET: The jury is now watching part of Mesa Det. Esteban Flores' interrogation of Arias, where she tells him about her injury to her hand.

1:06 p.m. ET: Martinez is now asking Arias about the injury she allegedly sustained to her finger when she killed Alexander on June 4, 2008. Arias told Burns the next day she cut her finger at a "Margaritaville."

1:04 p.m. ET: The photo of Arias' finger was taken some five months after it was allegedly injured in January 2008. The photo does not seem to show any visible injury to Arias' finger. Martinez asked Arias to hold her hand up to the jury to show them the injury again.

12:59 p.m. ET: Martinez is showing the jury a picture of Arias' hand. This may be an attack on Arias' claim that Alexander broke her finger and it did not properly heal. The attorneys are at a sidebar with the judge.

12:56 p.m. ET: Martinez asked, "It just seems it's OK for you to lie to him about a guy, but when it comes to him being with another girl you decide to confront him?" "Yes," said Arias.

12:55 p.m. ET: Arias said she was sexually monogamous with Alexander while they dated and up to the time of his death. Martinez is now asking Arias about kissing Ryan Burns the day after Alexander's death.

12:51 p.m. ET: Martinez wants to know why she talked to Alexander about him making out with another girl when they were broken up. He asked Arias if she was being "territorial" with Alexander. Arias said she was not.

12:49 p.m. ET: Martinez is asking Arias about what she did after she saw Alexander making out with another girl. Arias said she left, and called her father to tell him about it shortly after.

12:47 p.m. ET: Arias said one time she looked through Alexander's window and she saw him "making out" with another female. The woman's bra was off.

12:40 p.m. ET: Martinez is showing the jury photos of Arias' hair before she killed Alexander. This is likely an effort to combat Arias' claim that her hair was brown before she went to Mesa, Arizona, in June 2008.

12:37 p.m. ET: Martinez seems to be getting testy with Arias already. Arias said she called her sister dumb and stupid. Martinez followed up by telling Arias he didn't ask about what she had called her sister. The attorneys are at a side bar with Judge Sherry Stephens.

12:34 p.m. ET: Arias is on the stand. Prosecutor Martinez is asking Arias about a picture of her with sister. Martinez called her sister "dumb."

Martinez is known for his feisty courtroom demeanor. Martinez has become frustrated with some of his own witnesses during the course of the trial. He has raised his voice on numerous occasions.

"I don't think Juan Martinez can control himself, and I don't think he will. We've seen it already. Do you have to be careful? If I was doing the cross-examination, I'd be a little careful about crossing the line, the line where she appears to be the victim, because that's the character she's trying to play on the stand. That is the story of the defense. That is the defense, she's a victim. So, on the one hand, you don't want to cross that line, but you want to get as close as you can to that line," said Politan.

"The defendant is going to say whatever they're going to say. This isn't Perry Mason, they're not going to confess to murder on the witness stand. Your questions are basically you pointing out to the jury all the problems with her story, her theory and everything that she said. You ask leading questions, and you're allowed to, on cross-examination. Leading questions are questions that suggest an answer and the answer is either yes or no. You don't ask an open-ended question."

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